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Last active December 17, 2015 16:30
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Null Object Pattern using OpenStruct for simple predefined null objects (PreStep before Monads)
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null_object.rb
# How To Guard Against Ruby Nil Errors
# http://www.littlelines.com/blog/2013/06/22/how-to-guard-against-ruby-nil-errors/
# Null Object Pattern
# using OpenStruct for simple predefined null objects
require "ostruct"
NullUser = OpenStruct.new(id: -1, name: "Null User") # ... and additional accessors
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asaaki commented Aug 3, 2014

Very good generalized approach/gem: https://github.com/tomstuart/monads
(Ref: Talk at eurucamp 2014 -> http://2014.eurucamp.org/speakers/#tom-stuart)

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